-er -ic c-- ccc cce cci ccl ccr ce- cec cee cei cel cer ci- cic cie cii cil cir cl- clc cle cli cll clr crc cre cri crl crr ec- ecc ece eci ecl ecr eec eee eel eer eic eie eii eil eir elc ele eli ell elr erc ere eri erl err icc ice ici icl icr ie- iec iee iei iel ier iic iie iii iil iir il- ilc ile ili ill ilr ir- irc ire iri irl irr lcc lce lci lcl lcr lec lee lei lel ler lic lie lii lil lir llc lle lli lll llr lrc lri lrr rcc rce rci rcl rcr re- rec ree rei rel rer ric rie rii ril rir rlc rle rli rll rlr rrc rri rrl rrr